That Boutique-Y Rum Co. 10 years Port Mourant Batch 3 is an independent bottling of rum from Guyana. It was distilled at Diamond, using the mythical wooden still from the now-defunct Port Mourant plantation. This molasses rum is typical of a full-bodied, fruity English style, and always featured prominently in the British Navy blend.
The barrel was marked "MPM", indicating a rum aged partly in Guyana, partly in Europe. The aging process lasted 10 years, and 946 bottles were bottled.